DATASHEET
ISL3259E FN6587
Rev.2.00
Aug 31, 2017 В±15kV ESD Protected, 100Mbps, 5V, PROFIBUS, Full Fail-Safe, RS-485/RS-422
Transceiver
The ISL3259E is a В±15kV IEC61000 ESD Protected, 5V
powered, single transceiver that meets both the RS-485 and
RS-422 standards for balanced communication. It also
features the larger output voltage and higher data rate (up to
100Mbps) required by high speed PROFIBUS applications. The
low bus currents (+220ВµA/-150ВµA) present a 1/5 unit load to
the RS-485 bus. This allows up to 160 transceivers on the
network without violating the RS-485 specification’s load limit,
and without using repeaters.
This transceiver requires a 5V supply, and delivers at least a 2.1V
differential output voltage. This translates into better noise
immunity (data integrity), longer reach, or the ability to drive up to
six 120Ω terminations in “star” or other non-standard bus
topologies.
SCSI applications benefit from the ISL3259E’s low receiver
and transmitter part-to-part skews. The ISL3259E is perfect for
high speed parallel applications requiring simultaneous
capture of large numbers of bits. The low bit-to-bit skew eases …
